Enable contrast version

# Tutor profile: Erica B.

Inactive
Erica B.
Experienced mathematics, Excel, and data analytics tutor
Tutor Satisfaction Guarantee

## Questions

### Subject:Algebra

TutorMe
Question:

I've answered all kinds of algebra problems in various ways, depending on the learning style of my student. For example, 2x(3x-6) = 30 can be easily solved...

Inactive
Erica B.

Unless we need to back up and go over using negative numbers, fractions, or distribution in more detail, this is how to solve: 2x(3x-6) = 30 6x^2 - 12x = 30 6x^2 - 12x - 30 = 0 Now, one needs to decide whether this particular problem can be factored for a solution or whether the quadratic formula should be used to solve instead. This particular problem cannot be factored and must be solved with the quadratic formula: x = (12± √ ( (-12)^2 - 4(6)(-30) ) ) / (2(6)) x = (12± √ ( 144 - 4(-180) ) / 12 x = (12± √864) / 12 x ≈ -1.45, 3.45

### Subject:Calculus

TutorMe
Question:

Find the derivative of -2x^2 + 4x + 6

Inactive
Erica B.

This is a very basic derivative problem that can identify issues with the basic understanding of finding a derivative or the basic algebra one must know in order to proceed with calculus. The answer is -4x + 4 so if my student has a different answer, I see how he/she arrived at that answer in order to figure out what to explain and in how much detail. Then, my student can understand how to find the correct answer on this, then a similar problem.

### Subject:Pre-Calculus

TutorMe
Question:

Find the inverse of the composition of functions f(x) = 2x and g(x) = x + 4

Inactive
Erica B.

First, one must find the composition g ∘ f: (g ∘ f )(x) = 2x + 4 (this step can be explained in more detail as needed) Then reverse this process to find the inverse, so subtract 4, and then divide by 2: (g ∘ f)^(−1)(x) = (x − 4)/2 Working through this with a student reveals what exactly needs to be explained in more detail, including any fundamental algebra concepts required.

## Contact tutor

Send a message explaining your
needs and Erica will reply soon.
Contact Erica

Start Lesson

## FAQs

What is a lesson?
A lesson is virtual lesson space on our platform where you and a tutor can communicate. You'll have the option to communicate using video/audio as well as text chat. You can also upload documents, edit papers in real time and use our cutting-edge virtual whiteboard.
How do I begin a lesson?
If the tutor is currently online, you can click the "Start Lesson" button above. If they are offline, you can always send them a message to schedule a lesson.
Who are TutorMe tutors?
Many of our tutors are current college students or recent graduates of top-tier universities like MIT, Harvard and USC. TutorMe has thousands of top-quality tutors available to work with you.
BEST IN CLASS SINCE 2015
TutorMe homepage